Babbitting jig



Feb. 22 1927.

w. J HEMPY BABBITTING JIG Filed Dec. 10, 1923 2 Sheets-Sheet 1 m pa A m I f w M l Witness;

Strum! I Feb. 22 1927,

W. J. HEMPY BABBITTING JIG Filed Dec.

Patented Feb. 22, 1927.

WIL UR :r. HEMPY, or Kansas ci'rY, MISSOURI.

A ummn filed December 10, 1923. Serial No. 679,608.

My invention 'relates to improvements in babbitting jigs and while it may be used to advantage in, babbitting various articles, in the vpresent instance I have shown it arranged for babbitting connecting rods and ma111 bearingcaps.

One object is to provide. interchangeable dies for accommodating bearings of differentsizes, so. that a large variety. may be' in babbitted onthe same jig.

A further. objectis to provide aajig of th s character in which the working parts are arranged for speedy operation so that a max mum number of bearings can be babbltted. in a minimum period of time.

Other objects will hereinafter appear, and in order that the invention may be fully understood, reference will now be had to the accompanying drawings, in which: h F g. 1,is a sileelevation of the babbitting g showing in dotted lines a connecting rod in position tobe babbitted; i Q

Fig. 2 is a front elevationof .thebabbitting lg with the bearing ofthe connecting rod 1n section.

Fig. 3 is a vertical section on line III-III of Flg. 2. i I

4 Fig. l is a plan view of the babbitting jig with the connecting rod removed;v Fig. 5 is a fragmentary irregular horizontal section on line V -V of Fig.

Fig. 6'is a detail view. of a bifurcated pin and one of the die nipples. I

Referring now in detail to the various parts, 2 designates a frame which embodies a base 4:, an upright-portion 6 and a pair of standards 8.

if "10 designates a die having a chamber 12 communicating with inlet and outlet nipples 14' and16, respectively, adapted to be connected to sections of hose, not shown, The inlet nipple leis for the purpose of admitting water to the chamber 12 to prevent the die 10 from becoming unduly heated and retarding the cooling of the fluid babbitt when poured into a bearing. The water escapes from the chamber, 12 through the outlet nip-- pic 16, which also supports the die 10 in vertical position at the upper portion of the frame 2, which is provided with an opening 18- through WlllGll SiLlCl nipple 16 extends. The nipple 16 is provided withoppositel disposed grooves 20 to, receive the prongs 22 of a bifurcated pin 24, which firmly holds the die 10 intlle vertical recess 26 of the fra1ne2.

.per part of the die 28 designates an-interchangeable jaw slidably engagingthedie 10 and supported bya movable holder 30 to Which said die-10 is. removably connected by a 1 set screw 32. A 60 yoke 8 l=ren1ovably secured to-the front side ofthe upright portion 6 of the frame 2'by stud bolts 36 and thumbnuts 38, isemployed to support the holder 30 and the jaw 28in proper relation tothe die 10. i

40' designates a lever for raising and lowering the holder 30 and the jaw 28. A pin 42- carried by the lower portion ofthe frame 2 serves as a fulcrum for the lever l0, the bifurcated forward endof which straddles and supports a nut 44 adjustably engaging a screw e6'fixed to and depending from the lower portion of the holder 30." v

The rear end of the lever 40 is provided with a hole 48 through which the lower end of a toggle memberSO projects and. is provided with a nut 52 between which and a coilspring 54; the rear 'end ofthe lever lOis held. The toggle member is secured-by a pivot 56 to a handle 58 to which another toggle member 60.215 secured'by a pivot 62. The handle 58 is mounted upon. 'a pivot 64 carried at the upper ends ofthe standards 8. The" toggle member consists of; two. threaded elements whereby it may be lengthened or shortened: and is connected at its upper end by a; removable pin 766i to the rear endof a lever 68 fulcrumedl upon a removable pin 70 and' provided at its forward endwith a jaw 72 having a gate 74: coactingwith a gate portion76f in the up- 10 in directing the molten metal into the bearing A of a connecting rod B from hich the cap has been removed. 95

'The operation is substantially as follows: Initially the handle 58 is swung upwardly to the position disclosed by Fig. 1, which operation moves the jaws 28- and 7 apart, so that the bearing A of'thecon-nectmg rod- B can be readily positioned upon the jaw 28 and into properrel'ation with the die 10, the front portionof which is concentric to but of less diameter than the lnner surface of the bearing A to leave an intervening. space G to, receive the Babbitt metal D. The face 7 of the upright portion Got the frame 2 cons'titutes-a stop for the endsof the. hearing A, as shown by Fig, 5. r

The handle 58'is then lowered to the position disclosed by Fig, 3, which operation straightens out the toggle embodying" the members and until checked by a stop 79, and causes the lovers 4.0 and G8 to move the jaws 28 and 72 toward each other and firmly clamp the hearing A. As the toggle straightens out the spring 511 is compressed and compensates for any difference in movement between the levers -10 and 8 and also assists in holding the jaw 28 in engagement with the underside of the hearing A. In order that the Babbitt lining may have flanges overlapping the lower and upper surfacesof the hearing A, recesses 80 and 82 are formed in the jaws 28 and 72, respectively. After the bearing A has been babbitted the connecting rod B is instantly released by throwing the handle 58 upwardly to the initial position, whereupon the jig is in position to receive another connectingrod to be babbitted. The water flowing through the chamber 12 of the die 10 prevents the same from becoming unduly heated and retarding congealing of the poured babbitt, and hence the connecting rods may be babbitted as rapidly as they can be placed in position to receive the fluid bahbitt. The bearing caps which were previously removed from the bearings A to permit habbitting thereof, may likewise be bal'ibitted.

Change to another die of smaller or larger diameter can be quickly accomplished by removing the yoke 34:, which permits the nut &4. to he slipped out of engagement with the bifurcated forward end of the lever 41:0, thereby rendering the holder 30 accessible so that a jaw of the desired diameter can be substituted for the jaw 28. The hose is then slipped off the nipples 141: and 16 and the pin 66 is withdrawn, after which the lever 68 is swung backwardly as indicated by dotted lines Fig. 3, to loosen the pin 24; from the nipple 16, so that the die 10 can be removed and another oi desired size substituted. The holder 30, the nut 44;, the yoke 34 and the pins 2% and 66 an: then put week in place and the is ready for further operation. In some instances it may also benecessary to change the holder 30 and the lever 68 with its jaw 72, to accommodate dies varying considerably in diameter, but I have found in practice that dies of different diameters within certain limits can have upper ends of one size, so that the same jaw 72 will answer for all.

From the foregoing description, taken in connection with the drawings. it will he understood that I have provided a quick acting babbitting jig embodying the advantages above pointed out, and while I have shown and described the preferred embodiment of the invention I reserve the right to make such changes in the combination and arrangement of parts as properly tall within the spirit and scope oi the invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. A babbitting consisting of a frame, a vertically positioned die supported by said .trame and having a gate in its upper end, a jaw movable in the frame and adapted to support a bearing in proper relation to the die to be babbitted, another jaw to coact with the first jaw in clamping the bearing, and toggle means connected to said jaws for *ausing the same to clamp and release the bearing.

2. In a babbitting jig a suitably supported die, pivoted elements for holding a bearing in proper relation to said die to be babbitted, and toggle means connected to said elements for causing the latter to simultaneously grip and release the bearing.

3. In a babbitting jig a suitably supported die, elements for holding a bearing in proper relation to said die to be babbitted, toggle means connected to said elements for causing the latter to grip and release the hearing, and spring means associated with said toggle means to compensate for any difference in n'ioveinent oi the elements.

4;. In a bahbitting ig a suitably supported.

die, pivoted elements for holding a bearing in proper relation to said die to be babbitted, and means for simultaneously actuating said pivoted elements and causing them to grip and release thebearing.

5. In a babbitting jig a vertically positioned die having a chamber therein with an inlet and an outlet for thecirculation of a cooling fluid, pivoted elcn'icnts for holding a hearing in proper relationto said die to be babbitted and one of said elements having a. gate for directing the fluid babbit into the bearing, toggle means for actuating said elements, and a handle for actuating said toggle means. a

6. In a babbitting ji a frame having a hole therein, a die, a member projecting from said die through the hole in the frame, a pin removably engaging said member to secure the die in place, a lever pivoted to the frame and having a jaw for holding a llO bearing in proper relation to the die to be babbitted said lever being adapted when reversed to loosen the pin so that it can be removed from the member, and an element to coact "with the jaw in holding the hearing in iiosition to be bahbitted.

A habhitting jig consisting of a trainesupporting a vertically--positioned die, levers t'ulcruuied at the upper and lower portions ct said frame to swing in a vertical plane and equipped with jaws for holding a hearing in proper relation to the die to be babbitted, manually-controlled toggle means for actuating said levers and pivotally connected to one lever and having a loose connection with the other lever, and spring means associated With said loose connection to ooaot therewith in compensating for any difference of movement in said levers and gage one of said dies and adapted to support a bearing in proper relation to said dies to be babbitted, a holder for said jaw' having a depending threaded element, a

lever fulcrumed on the frame, a nut mounted on said lever and adjustably engaging said threaded element, a second lever fulcrumed on said frame and equipped with a jaw to coaet with the above-mentioned jaw in holding the bearing, and manual means for simultaneously actuating said levers to effect the holding and releasing of the hear ing.

WILBUR J. HEMPY.

In testimony whereof I affix my signature. i I 

